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JoeAltmaier
on Dec 17, 2020
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Transmits AM radio on computers without radio tran...
This is actually among the very oldest home-brew software ideas in existance. The original S100 bus machines (e.g. Altair 8800) had apps written to do just this - generate AM radio signals.
tdeck
on Dec 17, 2020
[–]
Here's a video of a PDP-8/e playing tunes over an AM radio:
https://youtu.be/akvSE5Z474c
The software dates to around 1975.
siraben
on Dec 17, 2020
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Wow! The signal is quite clear. How did they produce the AM signals in the PDP-8?
Johnythree
on Dec 17, 2020
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root
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Same as in any computer. Simple timing loops to generate repetitive signals.
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